fix: include line number in hashline computation
This commit is contained in:
parent
df1a0a59d9
commit
5ae9de0e8e
@ -2,19 +2,31 @@ import { describe, it, expect } from "bun:test"
|
||||
import { computeLineHash, formatHashLine, formatHashLines } from "./hash-computation"
|
||||
|
||||
describe("computeLineHash", () => {
|
||||
it("returns deterministic 2-char CID hash", () => {
|
||||
it("returns deterministic 2-char CID hash per line", () => {
|
||||
//#given
|
||||
const content = "function hello() {"
|
||||
|
||||
//#when
|
||||
const hash1 = computeLineHash(1, content)
|
||||
const hash2 = computeLineHash(999, content)
|
||||
const hash2 = computeLineHash(1, content)
|
||||
|
||||
//#then
|
||||
expect(hash1).toBe(hash2)
|
||||
expect(hash1).toMatch(/^[ZPMQVRWSNKTXJBYH]{2}$/)
|
||||
})
|
||||
|
||||
it("produces different hashes for same content on different lines", () => {
|
||||
//#given
|
||||
const content = "function hello() {"
|
||||
|
||||
//#when
|
||||
const hash1 = computeLineHash(1, content)
|
||||
const hash2 = computeLineHash(2, content)
|
||||
|
||||
//#then
|
||||
expect(hash1).not.toBe(hash2)
|
||||
})
|
||||
|
||||
it("ignores whitespace differences", () => {
|
||||
//#given
|
||||
const content1 = "function hello() {"
|
||||
|
||||
@ -1,9 +1,9 @@
|
||||
import { HASHLINE_DICT } from "./constants"
|
||||
|
||||
export function computeLineHash(lineNumber: number, content: string): string {
|
||||
void lineNumber
|
||||
const stripped = content.replace(/\s+/g, "")
|
||||
const hash = Bun.hash.xxHash32(stripped)
|
||||
const hashInput = `${lineNumber}:${stripped}`
|
||||
const hash = Bun.hash.xxHash32(hashInput)
|
||||
const index = hash % 256
|
||||
return HASHLINE_DICT[index]
|
||||
}
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user